<template>
<div>
    <!-- 头部区域 -->
    <div class="product-list-header">
        <!-- 头部搜索 -->
        <header class="category-header wrap">
            <i class="iconfont icon-left" @click="goback"></i>
            <div class="header-search">
                <i class="iconfont icon-search"></i>
                <input type="text" class="search-title" />
            </div>
            <i class="iconfont icon-More"></i>
        </header>
        <!-- 排序 -->
        <section class="select-menu">
            <div :class="['select-item',orderBy == 'default'?'active':'']" @click="selectMenu('default')">默认排序</div>
            <div :class="['select-item',orderBy == 'price_asc'?'active':'']" @click="selectMenu('price_asc')">
                升序
                <i class="iconfont icon-up1"></i>
            </div>
            <div :class="['select-item',orderBy == 'price_desc'?'active':'']" @click="selectMenu('price_desc')">
                降序
                <i class="iconfont icon-down1"></i>
            </div>
            <div class="select-item">
                筛选
                <i class="iconfont icon-shaixuan"></i>
            </div>
        </section>
    </div>
    <section class="product-list">
        <div class="product-container">
            <van-card v-for="(item,index) in productList" :key="index" :num="item.stock" :price="item.price" :desc="item.subtitle" :title="item.name" :thumb="item.imageHost + item.mainImage" :origin-price="item.originalPrice" @click="goDetail(item.id)" />
        </div>
    </section>
</div>
</template>

<script>
import {
    getProductList
} from '../../api/index.js'
export default {
    data() {
        return {
            categoryId: this.$route.query.categoryId,
            orderBy: 'default',
            pageNum: 1,
            pageSize: 20,
            productList: []
        }
    },
    created() {
        this.fetchProductList()
    },
    methods: {
        fetchProductList() {
            const params = {
                categoryId: this.categoryId,
                orderBy: this.orderBy,
                pageNum: this.pageNum,
                pageSize: this.pageSize
            }
            getProductList(params).then(res => {
                this.productList = res.list
            })
        },
        selectMenu(tag) {
            if (tag == this.orderBy) {
                return
            }
            this.orderBy = tag
            this.fetchProductList()
        },
        goback() {
            // this.$router.back()
            this.$router.go(-1)
        },
        goDetail(id) {
            this.$router.push('/product/' + id)
        }
    }
}
</script>

<style lang="scss" scoped>
@import '../../common/style/mixin.scss';

.product-list-header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: #fff;

    .category-header {
        @include fj;
        width: 100%;
        height: 100px;
        line-height: 100px;
        padding: 0 30px;
        @include boxSizing;
        font-size: 30px;
        color: #656771;
        z-index: 10000;

        &.active {
            background: $red;
        }

        .icon-left {
            font-size: 50px;
            font-weight: bold;
        }

        .header-search {
            display: flex;
            width: 76%;
            height: 40px;
            line-height: 40px;
            margin: 20px 0;
            padding: 10px 0;
            color: #232326;
            background: #f7f7f7;
            @include borderRadius(40px);

            .icon-search {
                padding: 0 10px 0 40px;
                font-size: 34px;
            }

            .search-title {
                font-size: 24px;
                color: #666;
                background: #f7f7f7;
            }
        }

        .icon-More {
            font-size: 40px;
        }

        .search-btn {
            height: 70px;
            margin: 15px 0;
            line-height: 70px;
            padding: 0 10px;
            color: #fff;
            background: $red;
            @include borderRadius(10px);
        }
    }

    .select-menu {
        display: flex;
        justify-content: space-around;
        width: 100%;
        height: 100px;
        background: #fff;

        .select-item {
            flex: 1;
            height: 100%;
            text-align: center;
            line-height: 100px;
            font-size: 30px;
            border-top: 1px solid #dcdcdc;
            border-bottom: 1px solid #dcdcdc;

            &.active {
                color: $red;
            }

            .iconfont {
                &.icon-down1 {
                    color: #999;
                    padding-left: 10px;
                    font-size: 22px;
                }

                &.icon-up1 {
                    @extend .icon-down1;
                    font-size: 34px;
                }

                &.icon-shaixuan {
                    @extend .icon-down1;
                    font-size: 28px;
                }

                &.active {
                    color: $red;
                }
            }
        }
    }
}

.product-list {
    width: 100%;

    .product-container {
        position: absolute;
        left: 0;
        top: 220px;
        width: 100%;
        overflow-y: scroll;
        height: auto;
    }
}
</style>
